FGH96合金是高推重比航空发动机涡轮盘首选材料,由于其变形抗力大,成形困难且难以控制,因而选择一种恰当的预成形方法就显得尤为重要.以某航空发动机涡轮盘为例,提出一种新的基于静电场模拟的预成形设计方法,并通过几何变换的方法得到实际预制坯的外形尺寸,因而更加简洁、直观和易于实现.对粉末高温合金盘件两工步(预锻+终锻)及无预锻工步等温锻造过程的数值模拟结果表明:采用三维电场设计的预锻模预锻后成形的锻件,其材料分配与流动更趋合理,且成形所需的载荷更低;基于三维静电场模拟的预成形设计方法更适合体积成形工艺的预成形设计.
参考文献
| [1] | Bin Fang;Zhen Ji;Meng Liu;Gaofeng Tian;Chengchang Jia;Tiantian Zeng;Benfu HU;Congcong Wang.Study on constitutive relationships and processing maps for FGH96 alloy during two-pass hot deformation[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2014:255-261. |
| [2] | 徐伟,张立文,顾森东,张建林.热等静压态FGH96合金的热压缩变形行为和微观组织演化[J].中国有色金属学报（英文版）,2012(01):66-71. |
| [3] | 夏天,张义文,迟悦,刘建涛,贾建,韩寿波.Hf和Zr含量对FGH96合金平衡相及PPB的影响[J].材料热处理学报,2013(08):60-67. |
| [4] | 冯引利,吴长波,郜伟强,陈伟.FGH96涡轮盘低循环疲劳寿命分析技术与试验[J].航空动力学报,2012(03):628-634. |
| [5] | 王旭青,罗学军,邹金文.热等静压温度对FGH96粉末高温合金显微组织的影响[J].航空材料学报,2006(03):293-294. |
| [6] | S. R. Lee;Y. K. Lee;C. H. Park;D. Y. Yang .A new method of preform design in hot forging by using electric field theory[J].International Journal of Mechanical Sciences,2002(4):773-792. |
| [7] | Wang Xiaona,Li Fuguo.A Quasi-equipotential Field Simulation for Preform Design of P/M Superalloy Disk[J].中国航空学报（英文版）,2009(01):81-86. |
| [8] | Jun Cai;Fuguo Li;Taiying Liu .Preform Design for Large-Sized Frame Forging of Ti-Alloy Based on 3-D Electrostatic Field Simulation and Geometric Transformation[J].Journal of Materials Engineering and Performance,2011(9):1491-1496. |
| [9] | Jun Cai;Fuguo Li;Taiying Liu .A new approach of preform design based on 3D electrostatic field simulation and geometric transformation[J].The International Journal of Advanced Manufacturing Technology,2011(5/8):579-588. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%